An HR department needs to track employees and their dependents to provide and manage health insurance benefit coverage. Assuming HR has all the information about each employee and all the needed information about dependents, the focus of this task is on the relationship between employees and dependents.

Notes:

$$ Exercise $1$ only needs to include two entity sets $-$ Employee and Dependent.

$$ No need to have other entity sets for this exercise.

a$.$ Propose a set of business rules to define the relationship between the Employee entity set and the Dependent entity set.

b$.$ Draw an E$-$R diagram to capture the relationship between the two entity sets.

$($No need to specify attributes or keys$)$